Diffusive Roof Underlay
1.5 m x 50m • Colour: Black
An extremely diffusive roof underlay for installation directly on the thermal insulation or wood sheathing. The monolithic membrane guarantees higher UV-Resistance and far higher resistance to driving rain. Vapour diffusion through the membrane no longer occurs through membrane pores – as in non-monolithic membranes – but through vapour transmission through the monolithic membrane itself. Therefore, ensuring exceptional water-tightness against driving rain and vapour while at the same time remaining extremely breathable.
- For vented & non-vented pitched roofs
- Rain-tight, wind-tight
- UV-Stabilized for max. 4 months
- Permanent protection for wood & insulation
- Easy to cut
- Unaffected by the influence of wood preservatives, chainsaw oil or resin.
- 100% recyclable